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Re: Hone and Benton 2007 (their second paper)
However, in both cases, the vertical descent prior to reaching
cruising speed is quite short. You can see it if you look for it,
however. Like arboreal birds, a tree-dwelling pterosaur would not
require a gravity assisted launch, but it saves energy if you happen
to be at a high point already.
I agree, but suspect that most pterosaurs launched from ground level.
I, too, suspect that most pterosaurs launched from ground level.
However, some of the smaller, relatively basal forms (ie.
"rhamphorynchoid" grade) like anurognathids may have had opportunity to
launch from trees regularly. Their size, planform, limb length, and
habitat are all consistent with such a scenario. I don't particularly
imagine most pterodactyloids launching from trees, especially large
species (the reasons for which were well addressed in your previous
post...ie. very tall trees with just two convenient branches for Q.